miss sandy is fencing in her rectangular backyard, which 3x^2 is feet wide and 4xy +5x ^3y^2 feet long.
a.) find the perimeter of miss sandy's yard. show all work.
b.) how much fencing should miss sandy purchase? use mathematics to justify your answer.

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.